You’ll gradually gain access to new War Campaign quests while leveling up to 120, requiring you to establish footholds on Zandalar, send followers on missions at the mission table, complete Island Expeditions, and reach Friendly reputation with Order of Embers, Proudmoore Admiralty, and Storm’s Wake. After you’ve reached player level 120, new quests will unlock at specific reputation levels with 7th Legion.
3. Offer to bring the item to the buyer if possible. You can offer to meet them in a closer location to them if you are unable to get to say Dalaran as a level 1. Most of the time, they will shift click to see where you are and just offer to take the portal to Orgrimmar or Stormwind since you are level 1. Common courtesies are a huge part of marketing, people want to feel special!
The most simple thing is TradeSkillMaster. This AddOn shows you quite an amount of information in the items tooltip. In my opinion, DBRegionMarketAvg the best source. It tells me the price, an item was posted on all EU realms in the last 14 days. Why not DBMarket? DBMarket only shows you the items value from your server in the last 14 days. This value often gets manipulated. Some people start to post an item with a 500g value for 500.000 Gold on the auction house for several weaks. As a consequence, DBMarket is rising towards 500.000 Gold.  If you use DBMarket with 100% and post your item for 500.000 Gold, nobody will buy it.

That’s because armor of higher level has higher Azerite power requirements than lower level armor. That means a shiny new piece of Epic gear will have better stats but, unless you’ve been diligent about your Azerite power grind, won’t have as many traits unlocked. You lose options as you earn better gear. Eventually, you’ll grind out enough Azerite to earn those traits back, but you’re left with limited customization until then.
Most of the players make the mistake of only listing 30-50 transmog items on the auction house and then hoping to get half of them sold until the next day. Me and a lot of other gold farmers and transmog sellers do have 3.000-10.000 items on the auction house across various realms. It does not mean you have to do it that way – but if you have 1000 items listed, chances are higher you can sell up to 10 per day. With only 100 items listed, you have to be lucky to sell one. Of course, the sells are not guaranteed if you post more items. But i’m sure you have a lot more fun if you open your mailbox and 10-20 items are sold